the crash killed paul walker and the driver, a professional car racer. the actor was at a fundraiser near los angeles for victims of the recent philippines typhoon when he decided to go for a ride in his friend's porsche carerra gt. authorities say speed was a factor but don't i think were racing. jim saw the pair before they took off. >> i know for a fact they weren't drag-racing. >> reporter: walker was best known for his role in the "fast & furious" films. the movies about street racing were huge hits worldwide. production on the 7th installment is delayed because of walker's death. fans continue to pay their respects at a makeshift memorial set up at the crash site leaving behind candles and movie memorabilia. walker's father talked to reporters outside his home. >> i'm just glad every time i saw him i told him i loved him. >> reporter: investigators say they have yet to determine how fast the car was going when walker and his friend crashed. teresa garcia, cbs news, los angeles. >>> coming up, how you can give a tree new life after you chop it down.